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Commit 91d80a84bbc8f28375cca7e65ec666577b4209ad

Authored by Zhao Hongjiang
Committed by Linus Torvalds
1 parent 697dfd8844
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

aio: fix possible invalid memory access when DEBUG is enabled 

dprintk() shouldn't access @ring after it's unmapped.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

... ... @@ -1029,9 +1029,9 @@
1029 1029 spin_unlock(&info->ring_lock);
1030 1030  
1031 1031 out:
1032   - kunmap_atomic(ring);
1033 1032 dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret,
1034 1033 (unsigned long)ring->head, (unsigned long)ring->tail);
  1034 + kunmap_atomic(ring);
1035 1035 return ret;
1036 1036 }
1037 1037